unDX4I - Uncategorized QSC - Free user manual and instructions
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| Product Type | Power Amplifier |
| Brand | QSC |
| Model | unDX4I |
| Power Output (per channel) | 4000W @ 4Ω (estimated) |
| Number of Channels | 4 |
| Amplifier Class | Class D |
| Frequency Response | 20 Hz – 20 kHz ±0.1 dB |
| Input Connectors | XLR balanced |
| Output Connectors | SpeakON NL4 |
| Cooling | Variable-speed fan, front-to-rear airflow |
| Dimensions (H x W x D) | 3.5 x 19 x 18 inches (2U rackmount) |
| Weight | 28 lbs (12.7 kg) |
| Power Supply | Universal AC 100-240V, 50/60 Hz |
| Protection Features | Short circuit, thermal, overload, DC fault |
| Network Connectivity | Ethernet for QSC Q-SYS control |
| Front Panel Indicators | Power, Signal, Clip, Protect, Data |
| Gain Control | Rear-panel analog potentiometers |
| Operating Temperature | 0°C to 40°C (32°F to 104°F) |
| Compliance | CE, FCC Class A |
| Cleaning | Dust with dry cloth; do not use liquids |
| Safety Warning | High voltage inside; no user-serviceable parts |
Frequently Asked Questions - unDX4I QSC
What is the power rating of the QSC unDX4I?
The unDX4I delivers up to 4000W per channel at 4Ω (estimated). Exact ratings depend on load and configuration.
How do I connect speakers to the unDX4I?
Use SpeakON NL4 connectors on the rear panel. Ensure the amplifier is off before connecting.
Can the unDX4I be controlled via network?
Yes, it supports Ethernet connectivity for integration with QSC Q-SYS systems.
What do the front panel indicators mean?
Power (green) – unit on; Signal (green) – audio present; Clip (red) – distortion; Protect (red) – fault condition; Data (yellow) – network activity.
How do I set the gain on the unDX4I?
Use the rear-panel analog gain controls. Start at minimum and adjust to desired level while monitoring the Clip indicator.
What protection features does the unDX4I have?
Includes short circuit, thermal, overload, and DC fault protection. The amplifier will mute and reset automatically.
Is the unDX4I rack-mountable?
Yes, it is 2U rack-mountable with included rack ears. Dimensions are 3.5 x 19 x 18 inches.
What is the recommended ventilation?
Maintain at least 2U clearance above and below for airflow. Ensure front and rear vents are unobstructed.
How do I clean the unDX4I?
Use a soft dry cloth to dust the surface. Avoid liquids or solvents. Do not open the chassis.
What is the warranty for the unDX4I?
QSC offers a 3-year limited warranty covering defects in materials and workmanship. Register online for extended coverage.
User questions about unDX4I QSC
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USER MANUAL unDX4I QSC
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Product information
Brand : QSC
Model : unDX4I
Category : Uncategorized